One dimension of the microservice architecture push comes from the growing complexity of Web application development. In fact, a microservices design pattern is a storefront component connected to a series of subordinate, functionally independent microservices. This approach offers faster team development and better debugging control than even a traditional modular application assembled in a Java WAR (Web Archive). The more complicated an application is, the more it's likely to benefit from microservice structuring. But it's the virtualization and cloud application of microservice architecture models that's gaining the most attention. The cloud offers significant benefits in horizontal scaling and microservices are critical in building applications that scale specifically where heavy function use demands, rather than for an entire monolithic application.